If you plan on heading to shop this Black Friday, you'll probably have a list of Christmas gifts to get family and friends. You'll of course need your wallet or purse, and you're not going to want to leave home without your cell phone.

"You can use your web, your data feature on you phone, to check out the prcing and see where the best prices are, " says Sprint Store Assistant Manager, Brandon Cornell.

Having price information at your fingertips can also work to the...